Method and device for automatically correcting positioning errors of optical elements of an optical system
US6188652A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Dec 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a method and to a device for automatically correcting, in a single application, positioning errors of optical elements of an optical system, with respect to the optical axis of said system. According to the invention, said device (1) has means (A1, A2, Am) for taking measurements representative of image shifts with respect to said optical axis, a calculation unit (UC) for determining on the basis of said measurements, values representative of positioning errors of optical elements, and means (C1, C2, Cn) for automatically modifying the positioning of said optical elements on the basis of these values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.